1294887268 has 6 divisors (see below), whose sum is σ = 2266052726. Its totient is φ = 647443632.

The previous prime is 1294887247. The next prime is 1294887277. The reversal of 1294887268 is 8627884921.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 804176164 + 490711104 = 28358^2 + 22152^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161860905 + ... + 161860912.

Almost surely, 2^1294887268 is an apocalyptic number.

It is an amenable number.

1294887268 is a deficient number, since it is larger than the sum of its proper divisors (971165458).

1294887268 is a wasteful number, since it uses less digits than its factorization.

1294887268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323721821 (or 323721819 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 55.

The square root of 1294887268 is about 35984.5420701723. The cubic root of 1294887268 is about 1089.9602342197.

The spelling of 1294887268 in words is "one billion, two hundred ninety-four million, eight hundred eighty-seven thousand, two hundred sixty-eight".